Definify.com

Webster 1913 Edition

Adj.

[L.

ampullaceus

, fr.

ampulla

Like a bottle or inflated bladder; bottle-shaped; swelling.

Kirby.

Ampullaceous sac

(Zool.)

one of the peculiar cavities in the tissues of sponges, containing the zooidal cells.

ampullaceous ‎(comparative more ampullaceous, superlative most ampullaceous)

shaped like a swollen bottle